From 3727be521a9b4c5fcf95c53adc8abe85f7105188 Mon Sep 17 00:00:00 2001
From: Dan Albert <danalbert@google.com>
Date: Thu, 5 Feb 2015 02:34:59 +0000
Subject: [PATCH] Fix some -Wundef issues.

git-svn-id: https://llvm.org/svn/llvm-project/libcxx/trunk@228266 91177308-0d34-0410-b5e6-96231b3b80d8
---
 include/__refstring | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/include/__refstring b/include/__refstring
index 6866bf1b9..61ccc7512 100644
--- a/include/__refstring
+++ b/include/__refstring
@@ -13,7 +13,7 @@
 #include <__config>
 #include <cstddef>
 #include <cstring>
-#if __APPLE__
+#ifdef __APPLE__
 #include <dlfcn.h>
 #include <mach-o/dyld.h>
 #endif
@@ -49,7 +49,7 @@ private:
         return data + sizeof(*rep);
     }
 
-#if __APPLE__
+#ifdef __APPLE__
     static
     const char*
     compute_gcc_empty_string_storage() _NOEXCEPT